Marine hull.



PATBNTED SEPT. 6, 1904.

T. H. SMITH.

MARINE HULL.

APPLICATION FILED MAR.18, 1904.

QT km 0 NO MODEL.

W/ TNESSES:

NITED STATES Patented September 6, 1904.

ATENT OFFICE.

MARINE HULL.

SPECIFICATION forming part of Letters Patent No. 769,502, datedSeptember 6, 1904.

Application filed March 18, 1904.

T (til whom, it may concern:

Be it known that I, THOMAS H. SMITH, a citizen of the United States, anda resident of Sturgeon Bay, in the county of Door and State ofVisconsin, have invented a new and Improved Marine Hull, of which thefollowing is a full, clear, and exact description.

This invention relates particularly to the construction of boats,launches, and other smaller craft; but it is applicable broadly to theconstruction of marine hulls of all types.

The invention consists in an improved manner of constructing metallichulls, and it lies particularly in the means for fastening the metallicsheathing to the frame, in the manner of joining the sheathing-plates toeach other, and in novel means for stiffening the entire structure.

This specification is an exact description of one example of myinvention,while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both the views.

Figure 1 is a side elevation showing as an example a sailing-hullconstructed according to my invention, and Fig. 2 is an enlargedcross-section of the same.

It indicates the keel, and Z) the ribs orframes, all of which arepreferably constructed of wood.

0 indicates the metallic sheathing, which preferably consists ofgalvanized sheetiron.

Running fore and aft along the outer sides of the frames b are ironbeads (Z, which have rounding outer surfaces and which are arranged oneat the lower edge of each strip of sheathing 0. These beads (I cover thelower edges of the sheathing-strips and are fastened securely in placeby screws 0, which pass through the metal beads and sheathing and intothe ribs or frames, as shown. The upper edge portion of eachsheathing-section e is curved to extend over the respective beads (Z, asindicated at c, and the extreme upper edges of the sheathing-sectionsare formed with hooks which are engaged under the strips or beads (Z andsoldered securely to the sheathing-section above it.

Said curved por- Serial No. 198,708. 1N0 model.)

tions 0 of the sheathing-sections therefore serve to inclose and protectthe metal beads (Z, and by soldering the parts 1: to the contiguoussheathing-strip an absolutely hermetic structure is obtained. Ifdesired, the uppermost bead (Z may be made considerably larger than theother beads, so as to form a chafing bead or guard, as indicated in Fig.2. The sheathing-sections may be joined to the keel and to thesheer-strakes of the boat in any desired manner.

This construction provides for cheaply constructing a boat and at thesame time for producing a hermetic and an extremely stiff and durable.metallic hull. The beads w, running fore and aft along the boat, greatlystiffen the same and avoid the danger commonly encountered in connectionwith metallic boats-to wit, the frequent and severe indentation of thelight sheet metal constituting the sheathing thereof.

Various changes in the form, proportions, and minor details of myinvention may be resorted to at will without departing from the spiritand scope thereof. Hence I consider myself entitled to all suchvariations as may lie within the intent of my claims.

Having thus described my invention, I claim as new and d csire to secureby Letters Patent- 1. A marine hull, comprising ribs, beads extendingfore and aft along the outer sides thereof, and metallicsheathing-scctions, one edge of each section lying under the beadadjacent thereto, and the other edge portions of the sheathing-sectionsextendingover the ad jacent beads.

2. A marine hull, comprising ribs, metallic sheathing-sections lying onthe outer sides thereof, beads located over one edge of each section,and means extending through the beads into the ribs to fasten the beadsand sheathing in place, the other edges of the sheathing-sections beingpassed over the beads and secured to the adjacent sheathing-section.

3. A marine hull, comprising ribs, sheathing-sections lying outsidethereof, and beads secured to the ribs and engaged with the edges of thesheathing-sections to hold them in place.

4. A marine hull comprising a framework, metallic sheathing-sections,and a series of framework to fasten the beads and sheathing in place,the other edge portions of the sheathing-sections being curved to extendover the beads and each of said portions having a hook at the extremeedge extending under the bead and secured to the adjacentsheathing-section;

In testimony whereof I have signedmy name to this specification in thepresence of two subscribing Witnesses.

THOMAS H. SMITH.

WVitnesses:

LAURA JOHNSON, PAULINE JOHNSON.

